Solve the Problem. -The Ages of the Members of a Gym Have a Gym

Multiple Choice

Solve the problem.
-The ages of the members of a gym have a mean of 40 years and a standard deviation of 13. Use the range rule of thumb to estimate the minimum and maximum "usual" ages.

A) 13 years, 67 years
B) 14 years, 66 years
C) 16 years, 68 years
D) 27 years, 53 years